I haven't gotten hold of the parts manual for my bus yet. I have PD4104-3103, still equipped with the original Spicer 4 speed.

When I run her, oil accumulates on top of the transmission case and all around the area where the shifter shafts go in through the top of the case. I don't have a good feel for how much she loses per mile, but it's significant. For a first shot, i thought I'd do the seals in the top of the transmission - does anybody have the part numbers for these seals handy? Anybody have another theory to where the leak is?

Looking forward to your replies, thanks,

Casper4104

Logged

If a half a hen lays a half an egg in a half a day - how long would it take a monkey with a wooden leg to kick the seeds out of a dill pickle?

Does your trans have a breather vent on top of it?It will look similar to a drive axle breather vent.I've had them go bad on axles, blowing out seals prematurely.The 5 speeds in the MCI 9's I wrenched on had the breather vent on it.I'm not familiar with your type of coach.Hope this might help.